Abstract
Edible mushrooms, Lentinula edodes, Pholiota nameko and Naematoloma sublateritiu, were inoculated to Quercus crispula killed by the infestation of Platypus quercivorus. All three mushrooms flushed fruitbodies not only from logs cut in 1m length, but also from standing dead trees. For all three mushrooms, more fruitbodies were harvested from logs cut from trunks higher than 2m above the ground than from logs cut from trunks lower than 2m above the ground, suggesting that the lower part of trunks with a large number of entry holes bored by P. quercivorus are not suitable for cultivation of these edible mushrooms. L. edodes were inoculated to the logs at different timing after felling. The amount of fruitbodies was larger from logs inoculated at 4 days after felling than from logs at 3 months after felling. Three strains of L. edodes with different capacities to prevent mycelial growth of the symbiotic fungus of P. quercivorus were inoculated to standing dead trees and logs. The amount of fruitbodies was the smallest when "TohokuS10" that has the highest preventive capacity was inoculated. These results suggest that Q. crispula trees killed by the infestation of P. quercivorus are useful for cultivation of edible mushrooms, but it is difficult to combine harvesting large amount of fruitbodies and controlling emergence of P. quercivorus.
